Hydrogen powered electricity generating planar member
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United States of America Patent
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Aug 9, 1994
Issued Date -
N/A
app pub date -
Feb 9, 1993
filing date -
Aug 21, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a hydrogen fuel cell which resists swelling of a proton-exchange membrane electrolyte by clamping the membrane between two catalytic electrodes in a tubular or frusto-conical configuration. Improved breathability and hydrogen sealing are obtained. The electrodes can be bonded to the solid electrolyte by employing an electrolytic proton-transporting polymer in the liquid-phase. Including finely divided platinum in the liquid phase provides an advantageous means of incorporating catalyst in the cell. Also disclosed is a blind tube porous carbon electrode assembly which can be manufactured by a method including coating a self-supporting electrode with a liquid-phase polymeric electrolyte material, for example, perfuorosulfonic acid, and curing it.
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